Boiler-furnace.



N0- 635,738.- r Patented Oct. 3|, I899.

' 1 A. BEARD.

BOILER FURNACE.

' (Lp plication filed Feb. 17, .1899.) (No Model.) I 3 Sheets-Sheet l,

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/// ////////AIV WITNESSES IN VE N TOR No. 635,738. I Patented oat. 3|, I899. A. BEARD.

BOILER FURNACE.

- (Application filed Feb. 17, 1899.)

3 Sheets-Sheet 2,

(No Modal.)

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W/ TNE SSE S INVENTO]? Maw A TTOHNE Y1 No. 635,738. Patented Oct. 3l, l899. A. BEARD.

BOILER FURNACE.

(Application filed Feb. 17, 1599.)

3 Sheets-Sheet 3.

No Model.)

INVENTOfi W/T/VESSES & 549, -Q/

A TTORNE Y! THE Namus PETERS CQ. PHOTG-LIYHOI. WASHINGTON, D. c.

AMBROSE BEARD, OF WOLVERHAMPTON, ENGLAND.

BOILER-FURNACE.

SPECIFICATION forming part of Letters Patent No. 635,738, dated October 31, 1899.

Application filed February 1'7, 1899. Serial No. 705,758- (No model.)

To aZZ whom it may concern:

Be it known that I, AMBROSE BEARD, a subject of the Queen of Great Britain, residing at Wolverhampton, England, have invented certain new and useful Improvements in Boiler-Furnaces, of which the following is a full and complete specification, such as will enable those skilled in. the art to which it appertains to make and use the same.

This invention relates to boiler-furnaces; and the object thereof is to provide an improved furnace for the combustion of gas and air for heating boilers, and particularly tubular boilers.

The invention is fully disclosed in the following specification, of which the accompanying drawings form a part, in which Figu re 1 is a sectional side elevation of a furnace constructed according to my invention; Fig. 2, a sectional front elevation thereof; Fig. 3, a ground plan view of one of the furnaces in section, and Fig.4: a plan View of the furnaces connected and showing the boiler-casing in section. I

In the drawings forming part of this specification the separate parts of my improve ment are designated by the same letters of reference in each of the views, and in the practice of my invention, as shown in the drawings, I preferably provide two supplemental furnaces A, which are arranged side by side and above which are high-combustion chambers B, and mounted over the combustionchambers B is a boiler-casing O, in which the boiler is placed.

The boiler shown in the drawings consists of cylindrical ends D, connected by tubes E, and said boiler is arranged vertically, one

. end thereof being between the high-combustion chambers B. The high-combustion chambers B open inwardly in the direction of the boiler, as shown at F, and the furnaces A are provided with horizontal air ports or passages G, which open through one end thereof and extend forwardly to the front walls thereof. Each of the furnaces is provided with a furnace-chamber g above the air-passages G and also with a partition-wall gi'which extends part way to the top of said chambers, and between the partition-Walls and the'rear walls of the furnaces is placed checker-Work 9 into which the gas is discharged through a pipe g Partial combustion or a low degree of combustion takes place in the furnacechambers in front of the partitionqvall g and the hotair and gases, which are mingled in the checker-work g pass forwardly to ports or passages 9 which lead up to and communicate with side chambers g, which comm unicate with the hi gh-combustion chambers B. The gas-supply pipe q is also provided with branch pipes H, which communicate with the high-combustion chambers B opposite the point where the passages g communicate therewith, and the branch pipes H are provided with valves h. The gas and air are mingled in a heated condition in the high-combustion chambersB, and a very high degree of heat is produced by the combustion thereof, the hot products of combustion being projected directly into contact with the boiler, as shown in Fig. 2. The highcombustion chambers B are also provided with checker-work, which is highly heated and bymeans of which the gas and air are also highly heated, which operation results in producing a more complete combustion and a higher degree of heat. I also arrange in front of the partition walls g supplemental checker-work chambers 71 into which air is fed through the air ports or passages G, as shown in Fig. l, and the air is highly heated in the checker-work chambers 77, and passes into the side chambers g through the ports or passages 72 (Shown in dotted lines in 1 and 2.) The ports or passages g are also shown in dotted lines in Fig. 2, and it will be observed that said ports or passages extend from both sides of the furnace-chambers and near the front ends thereof upwardly to the side chambers g, which communicate with the high-combustion chambers B.

By means of the construction herein described I provide a furnace or furnaces simple in construction and operation .and by means of which a great degree of heat may be obtained with a minimum amount of gas, the air and gas, with the exception of the gas which passes through the pipes H, being highly heated before they enter the high-combustion chambers, the result of this operation being to produce a more perfect combustion and a higher de ree of heat, as hereinbefore specified.

Having fully described my invention, I claim as new and desire to secure by Letters Patent- 1. A boiler-furnace, comprising two similar supplemental furnaces arranged side by side, a boiler-casing arranged over said furnaces, and high-combustion chambers arranged in the bottom of said boiler-casing and in communication with said supplemental furnaces, said high-combustion chambers being provided with checker-work, substantially as shown and described.

2. Aboiler-furnace, comprising two similar supplemental furnaces arranged side by side, a boiler-casing arranged over said furnaces,

and high-combustion chambers arranged in the bottom of said boiler-casing and in communication With said supplemental f urn aces, said high-combustion chambers being provided with checker-work, said supplemental furnaces being each provided with a plurality of gas-supply passages which open through one end thereof and extend longitudinally thereof, and also with furnace-chambers above said passages, and transverse partition-walls at one side of which is arranged checker-work with which said gas-passagescommunicate, and means for supplying gas to said checker-Work, and for conveying gas and air from the furnace-chambers to the high-combustion chambers, substantially as shown and described.

8. A boiler-furnace, comprising two similar supplemental furnaces arranged side by side, a boiler-casing arranged over said furnaces,

and high-combustion chambers arranged in the bottom of said boiler-casing and in communication with said supplemental furnaces, said supplemental furnaces being each provided with a plurality of gas-supply passages which open through one end thereof and extend longitudinally thereof, and also with furnace-chambers above said passages, and transverse partition-walls at one side of which is arranged checkerwork with which said air-passages com municate, means for supplying gas to said checker-work and for conveying gas and air from the furnace-chambers to the high-combustion chambers, and also for conveying gas to said high-combustion chambers, substantially as shown and described.

at. A boiler-furnace, comprising two similar supplemental furnaces, arranged side by side, a boiler-casing arranged over said furnaces, and high-combustion chambers arranged in the bottom of said boiler-casing and in communication with said supplemental furnaces, said supplemental furnaces being each provided with a plurality of gas-suppl y passages which open through one end thereof and em tend longitudinally thereof, and also with furnace chambers above said passages, and transverse partition-Walls at one side of which is arranged checker-Work with which said air-passages communicate, means for supply: ing gas to said checker-work and for conveying gas and air from the furnace-chambers to the high-combustion chambers, and also for conveying gas to said high-combustion chambers, said high-combustion chambers being also provided with checker-work, substantially as shown and described.

5. Aboiler-furnace, comprising two similar supplemental furnaces arranged side by side, a boiler-casing arranged over said furnaces, and high-combustion chambers arranged in the bottom of said boiler-casing and in communication With said supplemental furnaces, said supplemental furnaces being each provided with a plurality of gas-supplypassages which open through one end thereof and extend longitudinally thereof, and also with furnace-chambers above said passages, and transverse partition-walls at one side of which is arranged checker-work with which said air-passages communicate, means for su pplying gas to said checker-work and for conveying gas and air from the furnace-chambers to the high-combustion chambers, and also for conveying gas to said high-combustion chambers, said high-combustion chambers being also provided with checker-work, and the combustion-chambers in the supplemental furnaces being provided with supplemental checker-work chambers, and means for supplying air thereto, said supplemental checkerwork chambers being also in communication With the high-combustion chambers, substantially as shown and described.

In testimony that I claim the foregoing as my invention I have signed my name in-pres ence of the subscribing Witnesses.

AMBROSE BEARD. 

